Contains the descriptions of parallel aliases,
one per line.
Their general format is <alias>:<interface[(media)]>:<interface_parameter> where <alias> is a symbolic name to identify the parallel alias,
<interface> is one of the parallel install methods (can be ka-run or ssh),
<media> is a media list (as given to the --media parameter),
and finally <interface_parameter> is a specific interface parameter list like -c ssh -m node1 -m node2 for ka-run extension or node1:node2 (list of node hostnames) for ssh extension.

The list of packages that should not be automatically updated when using --auto-select.
It contains one package expression per line; either a package name,
or a regular expression (if enclosed in slashes /) to match the name of packages against.
(Actually,
it's matched against the full name of the package,
which has the form name-version-release.arch.)

The list of packages that should be preferred (useful for choices with --auto).
It contains one package expression per line; either a package name,
or a regular expression (if enclosed in slashes /) to match the name of packages against.